caa a22 4500 463217624 CHVBK 20180405153202.0 cr unu---uuuuu 170326e20070701xx s 000 0 eng 10.1007/s00269-007-0152-z doi (NATIONALLICENCE)springer-10.1007/s00269-007-0152-z High-temperature elasticity of magnesioferrite spinel [Elektronische Daten] [Sytle Antao, Ian Jackson, Baosheng Li, Jennifer Kung, Jiuhua Chen, Ishmael Hassan, Robert Liebermann, John Parise] The elastic moduli of magnesioferrite spinel, MgFe2O4, and their temperature dependence have been determined for the first time by ultrasonic measurements on a polycrystalline specimen. The measurements were carried out at 300MPa and to 700°C in a gas-medium high-pressure apparatus. On heating, both the elastic bulk (K S) and shear (G) moduli decrease linearly to 350°C. By combining with extant thermal-expansion data, the values for the room-temperature K S and G, and their temperature derivatives are as follows: K 0=176.3(7)GPa, G 0=80.1(2)GPa, (∂K S/∂T) P =−0.032(3)GPa K−1 and (∂G/∂T) P =−0.012(1)GPa K−1. Between 350 and 400°C, there are abrupt increases of 1.4% in both of the elastic moduli; these closely coincide with the magnetic Curie transition that was observed by thermal analyses at about 360°C. Springer-Verlag, 2007 Magnesioferrite nationallicence High-temperature studies nationallicence Ultrasonic nationallicence Elasticity nationallicence Antao Sytle Advanced Photon Source, Argonne National Laboratory, 60439, Argonne, IL, USA aut Jackson Ian Research School of Earth Sciences, Australian National University, 0200, Canberra, ACT, Australia aut Li Baosheng Mineral Physics Institute and Department of Geosciences, Stony Brook University, 11794-2100, Stony Brook, NY, USA aut Kung Jennifer Department of Earth Sciences, National Cheng Kung University, 1 University Road, 70101, Taiwan, Taiwan, R.O.C aut Chen Jiuhua Mineral Physics Institute and Department of Geosciences, Stony Brook University, 11794-2100, Stony Brook, NY, USA aut Hassan Ishmael Department of Chemistry, University of the West Indies, Kingston 7, Jamaica aut Liebermann Robert Mineral Physics Institute and Department of Geosciences, Stony Brook University, 11794-2100, Stony Brook, NY, USA aut Parise John Mineral Physics Institute and Department of Geosciences, Stony Brook University, 11794-2100, Stony Brook, NY, USA aut Physics and Chemistry of Minerals Springer-Verlag 34/5(2007-07-01), 345-350 0342-1791 34:5<345 2007 34 269 https://doi.org/10.1007/s00269-007-0152-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00269-007-0152-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Antao Sytle Advanced Photon Source, Argonne National Laboratory, 60439, Argonne, IL, USA aut NATIONALLICENCE 700 1- Jackson Ian Research School of Earth Sciences, Australian National University, 0200, Canberra, ACT, Australia aut NATIONALLICENCE 700 1- Li Baosheng Mineral Physics Institute and Department of Geosciences, Stony Brook University, 11794-2100, Stony Brook, NY, USA aut NATIONALLICENCE 700 1- Kung Jennifer Department of Earth Sciences, National Cheng Kung University, 1 University Road, 70101, Taiwan, Taiwan, R.O.C aut NATIONALLICENCE 700 1- Chen Jiuhua Mineral Physics Institute and Department of Geosciences, Stony Brook University, 11794-2100, Stony Brook, NY, USA aut NATIONALLICENCE 700 1- Hassan Ishmael Department of Chemistry, University of the West Indies, Kingston 7, Jamaica aut NATIONALLICENCE 700 1- Liebermann Robert Mineral Physics Institute and Department of Geosciences, Stony Brook University, 11794-2100, Stony Brook, NY, USA aut NATIONALLICENCE 700 1- Parise John Mineral Physics Institute and Department of Geosciences, Stony Brook University, 11794-2100, Stony Brook, NY, USA aut NATIONALLICENCE 773 0- Physics and Chemistry of Minerals Springer-Verlag 34/5(2007-07-01), 345-350 0342-1791 34:5<345 2007 34 269 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer